STUDY OF A NEW EXPERIMENT FOR THE SEARCH OF NU(MU)-NU(TAU) OSCILLATIONS

We present the conceptual design of TENOR (Tracking and Emulsions for Neutrino Oscillation Research), a ''short-baseline'' experiment aiming at a new high sensitivity search for nu(mu) - nu(tau) oscillations in the CERN Wide Band Neutrino Beam. We show that by exploiting the adva nces in the technology of nuclear emulsions, one can conceive a hybrid apparatus with an emulsion target a factor sir heavier than the one p resently used in the CHORUS experiment. The main features of the exper iment are discussed, as well as the issues of data selection, backgrou nd reduction, and sensitivity in the determination of sin(2)2 theta(mu tau). The present estimates on the experimental backgrounds are extra polated from those anticipated for the CHORUS experiment; a more thoro ugh study is still needed. The expected sensitivity of the experiment on the oscillation mixing angle is more than a factor 15 higher than t hose of the present explorations. In the case of a negative search, an d for large Delta m(2) the 90% CL upper Limit in the mixing angle woul d be sin(2)2 theta(mu tau) < 9 x 10(-6).